Move the thread hop for UMA user actions from content:: to base::.

components/metrics/test_metrics_service_client.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/metrics/test_metrics_service_client.h"
 
 #include "base/callback.h"
+#include "base/test/test_mock_time_task_runner.h"

[Ilya Sherman, 2016/04/07 18:21:54]

nit: Probably test_simple_task_runner would be a better choice.

[beaudoin, 2016/04/07 21:12:58]

Done.

 #include "components/metrics/metrics_log_uploader.h"
 #include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
 
 namespace metrics {
 
 // static
 const char TestMetricsServiceClient::kBrandForTesting[] = "brand_for_testing";
 
 TestMetricsServiceClient::TestMetricsServiceClient()
     : version_string_("5.0.322.0-64-devel"),
       product_(ChromeUserMetricsExtension::CHROME),
       reporting_is_managed_(false),
-      enable_default_(MetricsServiceClient::DEFAULT_UNKNOWN) {}
+      enable_default_(MetricsServiceClient::DEFAULT_UNKNOWN),
+      task_runner_(new base::TestMockTimeTaskRunner) {}
 
 TestMetricsServiceClient::~TestMetricsServiceClient() {
 }
 
 metrics::MetricsService* TestMetricsServiceClient::GetMetricsService() {
   return nullptr;
 }
 
 void TestMetricsServiceClient::SetMetricsClientId(
     const std::string& client_id) {
@@ skipping 43 matching lines @@
 
 scoped_ptr<MetricsLogUploader> TestMetricsServiceClient::CreateUploader(
     const base::Callback<void(int)>& on_upload_complete) {
   return scoped_ptr<MetricsLogUploader>();
 }
 
 base::TimeDelta TestMetricsServiceClient::GetStandardUploadInterval() {
   return base::TimeDelta::FromMinutes(5);
 }
 
+scoped_refptr<base::SingleThreadTaskRunner>
+    TestMetricsServiceClient::GetMainThreadTaskRunner() {
+  return task_runner_;
+}
+
 bool TestMetricsServiceClient::IsReportingPolicyManaged() {
   return reporting_is_managed_;
 }
 
 MetricsServiceClient::EnableMetricsDefault
 TestMetricsServiceClient::GetDefaultOptIn() {
   return enable_default_;
 }
 
 }  // namespace metrics